Agnosticism

I'm going to expand on a point made by philosopher Christopher Kaczor in a recent interview. A problem with agnosticism is that either we live as if God exists or we live as if God doesn't exist. So the agnostic is living out the answer to that question just as much as the Christian. 

Even if, intellectually, the agnostic suspends judgment, he can't suspend judgment in practice. He must live as if one answer is true while the other is false. Although he can be agnostic in his head, he can't be agnostic with his feet. 

To be consistent with how he must live, an agnostic should try harder to resolve the indecision. His actions ought to match his beliefs, and vice versa.